test-lib/src/main/java/org/apache/livy/test/apps/FailingApp.java
<filename>test-lib/src/main/java/org/apache/livy/test/apps/FailingApp.java/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.livy.test.apps;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;

public class FailingApp {

  public static void main(String[] args) throws Exception {
    if (args.length != 1) {
      throw new IllegalArgumentException("Missing output path.");
    }
    String output = args[0];

    FileSystem fs = FileSystem.get(new Configuration());
    Path out = new Path(output);
    fs.create(out).close();

    throw new IllegalStateException("This app always fails.");
  }

}
